Possible Side Effects

Radiation is more harmful to tumor cells than it is to normal cells. Still, normal tissue may also be damaged by radiation, which is the cause of most side effects, if they do occur. Side effects are cumulative, which means they can develop over several weeks as the radiation accumulates in the tumor. They are usually temporary and should subside shortly after treatment ends.

Skin irritation similar to sunburn. Your healthcare team may advise you to avoid exposing the treated skin to the sun because it may worsen the skin condition.

Fatigue

Rarely after radiation therapy, a large mass of dead (necrotic) tissue forms at the site of the tumor. This occurs months to years after radiation is given and is called radiation necrosis. Usually, this tissue is absorbed by the body. Occasionally, surgery may be needed to remove the necrotic tissue.

Loss of sensation — which may be temporary. In rare cases, it is permanent.

Paralysis - which may be temporary. In rare cases, it is permanent.

Damage to nerves, or disability from nerve damage

Bone fracture and vertebral body collapse — for tumors which have already significantly invaded the vertebral bodies. Vertroplasty or Kyphoplasty is one of many techniques to minimize this effect in those cases.

Varian Medical Systems' linear accelerators are intended to provide stereotactic radiosurgery and precision radiotherapy for lesions, tumors, and conditions anywhere in the body where radiation treatment is indicated.

Safety

Radiation treatments may cause side effects that can vary depending on the part of the body being treated. The most frequent ones are typically temporary and may include, but are not limited to, irritation to the respiratory, digestive, urinary or reproductive systems, fatigue, nausea, skin irritation, and hair loss. In some patients, they can be severe. Treatment sessions may vary in complexity and time. Radiation treatment is not appropriate for all cancers. You should discuss the potential for side effects and their severity as well as the benefits of radiation with your doctor to make sure radiation treatment is right for you.